SUM Data Between 2 Dates

Okay now lets say 'Transaction DB'J:J contains the dates we are searching against. $A contains the Product ID Number and 'Transaction DB'AD:AD contains the total that needs to be summed.

I want to pull information between 10/1/2009 thru 10/31/2009 that match Item Number (from $A on same sheet) to sum the Totals in 'Transaction DB'AD:AD that match all criteria above.

What I've been trying to use:
{=SUMPRODUCT(‐‐('Transaction DB'!J:J,">="&DATE('Set Date'!$D$2,'Set Date'!$B$2,'Set Date'!$C$2)),‐‐('Transaction DB'!J:J,"<="&DATE('Set Date'!$D$4,'Set Date'!$B$4,'Set Date'!$C$4)),--('Transaction DB'!D:D,A5),('Transaction DB'!$AD:$AD))}

I get:
#NAME?

What gives?